To gauge the height of various components
1.2.3 Vernier
To measure the length of various components
1.2.4 尺 Outside micrometer
To accurately measure external
diameter of a column
1.2.5 Inside micrometer
To accurately measure internal
diameter of a hole
1.2.6 Dial indicator
To accurately measure a small distance
1.2.7 Torque Spanner
To measure torque force
1.2.8 Feeler gauge
To measure gap-width